TOUCH DETECTION DEVICE, ELECTRONIC DEVICE AND RECORDING MEDIUM
First Claim
1. A touch detection device including:
- a display unit providing screen display;
a touch panel configured on the display screen of said display unit; and
a touch detection unit detecting touch to said touch panel based on detection signals at said touch panel, whereinsaid touch detection device comprises a condition determination unit determining a touch detection condition based on the screen displayed by said display unit; and
said touch detection unit detects touch using the touch detection condition determined by said condition determination unit.
3 Assignments
0 Petitions
Accused Products
Abstract
A touch position calculation unit 113 calculating the touch position based on detected intensities at a touch panel unit 150 compares the detected intensities with a threshold to determine whether the touch is valid. Here, since display noise caused by the display screen of a display unit 132 affects the touch detection, the touch position calculation unit 113 acquires the display state of the display unit 132 from a display control unit 112. The touch position calculation unit 113 makes reference to a condition list stored in a memory 160 and sets up a threshold corresponding to the display state as the touch detection condition. Information indicating the display state includes the screen design typified by coloration patterns and the total gradation value corresponding to the voltage applied to the screen.
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Citations
12 Claims
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1. A touch detection device including:
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a display unit providing screen display; a touch panel configured on the display screen of said display unit; and a touch detection unit detecting touch to said touch panel based on detection signals at said touch panel, wherein said touch detection device comprises a condition determination unit determining a touch detection condition based on the screen displayed by said display unit; and said touch detection unit detects touch using the touch detection condition determined by said condition determination unit. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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12. A computer-readable recording medium in which programs are recorded wherein the programs allow a computer controlling a touch detection device comprising:
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a display unit providing screen display; a touch panel configured on the display screen of said display unit; and a touch detection unit detecting touch to said touch panel based on detection signals at said touch panel to realize the following functions; determining a touch detection condition based on the screen displayed by said display unit; and detecting touch using the determined touch detection condition.
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Specification